CN107134690A - One kind insurance dog-type coupling and its application method - Google Patents

One kind insurance dog-type coupling and its application method Download PDF

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Publication number
CN107134690A
CN107134690A CN201710515918.3A CN201710515918A CN107134690A CN 107134690 A CN107134690 A CN 107134690A CN 201710515918 A CN201710515918 A CN 201710515918A CN 107134690 A CN107134690 A CN 107134690A
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CN
China
Prior art keywords
latch
slide block
connector
section
block mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710515918.3A
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Chinese (zh)
Other versions
CN107134690B (en
Inventor
周付兵
李永星
梁冠岚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mianyang Kai Chuang Electronic Technology Co Ltd
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Mianyang Kai Chuang Electronic Technology Co Ltd
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Publication date
Application filed by Mianyang Kai Chuang Electronic Technology Co Ltd filed Critical Mianyang Kai Chuang Electronic Technology Co Ltd
Priority to CN201710515918.3A priority Critical patent/CN107134690B/en
Publication of CN107134690A publication Critical patent/CN107134690A/en
Application granted granted Critical
Publication of CN107134690B publication Critical patent/CN107134690B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/502Bases; Cases composed of different pieces
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/26Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

Insure dog-type coupling the present invention relates to one kind, including connector (1), slideway (5) is provided with the shell (2) of connector (1), the slide block mechanism (4) that can be slided along slideway (5) is provided with slideway (5), slide block mechanism (4) two ends connect the plug of unlocking mechanism (6) and connector respectively, the shell (2) is provided with the plug passage (3) for extending transversely through slideway (5), latch (8) is provided with plug passage (3), latch (8) can drive sliding equipment (4) to be slided along slideway (5).The application method of the insurance dog-type coupling is also disclosed simultaneously.The present invention is simple in construction, it is easy to operate, the plug state of connector can quickly be changed and change its break-make line state, and break-make road change time interval is extremely short, substantially reduce the conversion time on connector break-make road, simultaneously being capable of self-locking after change state, it is ensured that the stability and reliability of connector.

Description

One kind insurance dog-type coupling and its application method
Technical field
The present invention relates to connector, belong to technical field of electronic devices, it is more particularly related to a kind of safety plug Formula connector.
Background technology
Connector, i.e. CONNECTOR, the country are also referred to as connector, plug and socket.Generally refer to electric coupler.I.e. Connect the device of two active devices, transmission electric current or signal.The brand of connector has Jia Naimei, knob Cui Ke, Toshiba, Molex Deng.Connector be our electronic engineering technical staff often in contact with a kind of part.Its effect is very simple:The quilt in circuit At blocking or between isolated obstructed circuit, the bridge of communication is erected, so that current flowing, makes the work(that circuit realiration is predetermined Energy.Connector is indispensable part in electronic equipment, along current flowing path observe, you always found one or Multiple connectors.Connector form and structure be it is Protean, with application, frequency, power, application environment etc. no Together, there are various various forms of connectors.For example, on court the connector of lighting and hard disk drive connector, and The connector for lighting rocket differs widely.But connector whatever, it will ensure that electric current is smooth continuous and can By ground circulation.For referring to, what connector was connected is not limited only to electric current, in today of photoelectron technology fast development, In fibre system, the carrier of transmission signal is light, and glass and plastics instead of the wire in circuit common, but photo-signal channel In also use connector, their effect is identical with circuit connector.
Connector is after some are only capable of accommodating and installed in the narrow space of connector in itself, when needing to be plugged, Due to space limitation, plug is extremely inconvenient, it is impossible to realizes quick UNICOM or disconnects electrical connection.
The content of the invention
Based on above technical problem, dog-type coupling is insured the invention provides one kind, so as to solve conventional connector The technical problem of fast insert-pull can not be realized in small space;Meanwhile, the invention also discloses making for insurance dog-type coupling Use method.
To solve above technical problem, the technical solution adopted by the present invention is as follows:
It is provided with that be provided with slideway, slideway can in one kind insurance dog-type coupling, including connector, the shell of connector The slide block mechanism slided along slideway, slide block mechanism two ends connect the plug of unlocking mechanism and connector respectively, and the shell is set Have in the plug passage for extending transversely through slideway, plug passage and be provided with latch, latch can drive sliding equipment to be slided along slideway.
It is preferred that, the unlocking mechanism includes main body, and the middle part and both sides of main body one end are respectively guide part and solution lock section, The main body other end is connected with adjustable spring;The slide block mechanism end is provided with jogger hole and locating slot, the guide part and top Rod aperture, solution lock section and locating slot are respectively cooperating with unlocking mechanism and slide block mechanism being connected, and are additionally provided with the jogger hole Steel ball.
It is preferred that, the slide block mechanism, which is located to be additionally provided with cross through hole, cross through hole on the outside of locating slot, is provided with use Resigning platform is equipped with the outside of the ball of self-locking, the end of the solution lock section and on the inside of the corresponding shell in slide block mechanism end Rank.
It is preferred that, one end that the latch coordinates with plug passage is provided with avoiding misinsertion step.
It is preferred that, the slide block mechanism, which is located on the inside of plug passage, is provided with straight pin, the latch end be provided with The sheave groove that straight pin coordinates.
It is preferred that, the sheave groove is set in staged, including starting flare openings section, the axial direction at middle part rises as high as the banks The arcwall groove of section, the chute section at rear portion and afterbody, the chute section and the setting at an acute angle of latch axis, the chute section End end inverse-arc shape be bent to form the arcwall groove.
It is preferred that, the latch is located at the end-beveling formation inclined plane on the inside of plug passage.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows:The present invention is simple in construction, behaviour Facilitate, can quickly change the plug state of connector and change its break-make line state, and break-make road changes time interval pole It is short, the conversion time on connector break-make road is substantially reduced, while being capable of self-locking after change state, it is ensured that the stabilization of connector Property and reliability.
Based on above technical scheme, present invention also offers a kind of application method for insuring dog-type coupling, including it is following Step,
Unblock:By latch insertion plug passage, straight pin enters flare openings section, now outside latch in lateral jogger hole Portion extrudes steel ball, and steel ball drives unlocking mechanism to move right and compresses adjustable spring, when ball both sides are respectively positioned on solution lock section and outer In resigning step on the inside of shell, unblock is completed, now straight pin is located at section of rising as high as the banks;
Power-off:Latch is persistently inserted, latch enters chute section after being moved along section of rising as high as the banks, and now straight pin is acted in chute section Lower band movable slider mechanism is integrally moved to right, slide block mechanism drive plug move to right, connector electrical connection disconnect and keep necessarily pull out electricity away from From formation open circuit;
Self-locking:Latch is continued into after power-off, straight pin enters arcwall groove by chute section, now steel ball is in flexible bullet Spring effect is lower laterally to hold out against latch, bolt self-locking.
Locking:Latch is reversely extracted, straight pin is rapid under the effect of sheave groove to drive slide block mechanism to move to left, simultaneous retractable bullet Spring is upheld, and the resigning step transverse shifting of solution lock section is relative with ball to be slided, when latch is extracted completely, and slide block mechanism recovers former Position, now, the resigning step of solution lock section staggers completely with ball, and ball one end is located at the resigning step on the inside of shell, sliding block machine Structure and unlocking mechanism are realized in the presence of adjustable spring locked by ball, and now connector is in path, completes path lock It is fixed.
It by above method, can quickly operate connector to realize that break-make road switches, and can in path or open circuit Reach self-locking, it is ensured that the safety and reliability of operation.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention, while being also the structural representation of path blockade state;
Fig. 2 is the schematic enlarged-scale view at A in Fig. 1;
Fig. 3 is the structural representation of latch;
Fig. 4 is the structural representation of released state of the present invention;
Fig. 5 is the cross-sectional view in latch A-A faces in Fig. 4;
Fig. 6 is the structural representation of off state of the present invention;
Marked in figure:1st, connector;2nd, shell;3rd, passage is plugged;4th, slide block mechanism;5th, slideway;6th, unlocking mechanism;7th, prevent Misplug step;8th, latch;9th, straight pin;10th, sheave groove;11st, locating slot;12nd, jogger hole;13rd, steel ball;14th, guide part;15、 Resigning step;16th, solution lock section;17th, main body;18th, adjustable spring;19th, ball;20th, flare openings section;21st, axial section of rising as high as the banks; 22nd, chute section;23rd, arcwall groove.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.Embodiments of the present invention include but is not limited to following reality Apply example.
As shown in figs 1 to 6, cunning is provided with a kind of insurance dog-type coupling, including connector 1, the shell 2 of connector 1 The slide block mechanism 4 that can be slided along slideway 5 is provided with road 5, slideway 5, the two ends of slide block mechanism 4 connect unlocking mechanism 6 and connected respectively The plug of device is connect, the shell 2 is provided with the plug passage 3 for extending transversely through slideway 5, plug passage 3 and is provided with latch 8, inserts Pin 8 can drive sliding equipment 4 to be slided along slideway 5.
The operation principle of the present embodiment is:Latch 8 inserts or pull out plug passage 3, drives sliding equipment 4 to be slided along slideway 5 It is dynamic, so as to by plug transverse shifting of the slide block mechanism 4 with movement connector, realize the plug of plug, complete the circuit of connector 1 Break-make.
The present embodiment is simple in construction, easy to operate, is the connecting and disconnecting of the circuit that connector 1 can be achieved using latch 8, and plug is fast Speed, on off operating mode switching time is short, while unlocking mechanism 6 can lock slide block mechanism 4, it is ensured that the connector on off operating mode 1 is reliable and stable, will not change state, improves the security of connector 1.
In the present embodiment, unlocking mechanism 6 includes main body 17, and the middle part and both sides of the one end of main body 17 are respectively the He of guide part 14 Solution lock section 16, the other end of main body 17 is connected with adjustable spring 18;The end of slide block mechanism 4 is provided with jogger hole 12 and locating slot 11, the guide part 14 and jogger hole 12, solution lock section 16 and locating slot 11 are respectively cooperating with matching somebody with somebody unlocking mechanism 6 and slide block mechanism 4 Close in connection, the jogger hole 12 and be additionally provided with steel ball 13.The unlocking mechanism 6 and slide block mechanism 4 of the present embodiment pass through guide part 14 and jogger hole 12, solution lock section 16 and locating slot 11 be respectively cooperating with connection, and main body 17 is connected with adjustable spring 18, so that first Certain effect power is provided during beginning state so that slide block mechanism 4 or so is positioned, with certain locking effect, keep solution lock section 16 Position realize structure self-locking;Steel ball 13 in the present embodiment is contacted in the swapping process of latch 8, with two effects: One is during latch 8 is inserted or pull out to latch 8 its to a guide effect, can quickly insert or pull out Plug passage 3, will not jam, while steel ball 13 can also provide guide part 14 active force so that unlocking mechanism 6 it is quick to Move right completion unblock;The second is the friction between latch 8 and internal structure can be reduced in the swapping process of latch 8, plug It is more smooth.
The slide block mechanism 4 of the present embodiment, which is located to be additionally provided with cross through hole, cross through hole on the outside of locating slot 11, to be provided with For the ball 19 of self-locking, it is equipped with the inside of the corresponding shell on the outside of the end of the solution lock section 16 and end of slide block mechanism 4 Resigning step 15.In unlocking mechanism 6 and the relative movement thereof of slide block mechanism 4, when the both sides of ball 19 are respectively positioned on the He of solution lock section 16 When in the resigning step 15 of slide block mechanism 4, unlocking mechanism 6 and slide block mechanism 4 can be relatively moved, and when unlocking mechanism 6 and sliding block The resigning step 15 of mechanism 4 mutually staggers, and ball 19 is located therein the resigning step 15 of some solution lock section 16 and slide block mechanism 4 When interior, then unlocking mechanism 6 and slide block mechanism 4 can not be relatively moved, and the two forms locking state, can be achieved certainly by ball 19 Lock, it is ensured that unlocking mechanism 6 and slide block mechanism 4 can be kept in path or open circuit should be stateful, improves the stabilization of connector 1 Property.
In the present embodiment, the one end coordinated in latch 8 with plug passage 3 is provided with avoiding misinsertion step 7.Avoiding misinsertion step 7 So that the cross section of latch 8 forms asymmetrically shape, corresponding plug passage 3 also forms asymmetrically shape with matching, from And must be inserted when injecting plug passage 3 according to shape, lose the effect of fast insert-pull so as to prevent the misplug of latch 8 Really.
In the embodiment above, the slide block mechanism 4, which is located on the inside of plug passage 3, is provided with straight pin 9, the latch 8 End is provided with the sheave groove 10 coordinated with straight pin 9.The straight pin 9 and sheave groove 10 of the present embodiment cooperate, so that In the swapping process of latch 8, straight pin 9 is with the curve movement of sheave groove 10, so that the whole slide block mechanism 4 in road east is translated, so that The plug of connector 1 is realized by the plug of latch 8.
In order to preferably realize plug and self-locking, the sheave groove 10 of the present embodiment is set in staged, including starting Flare openings section 20, the axial direction at middle part rise as high as the banks the arcwall groove 23 of section 21, the chute section at rear portion 22 and afterbody, it is described tiltedly Groove section 22 is bent to form the deep-slotted chip breaker with the setting at an acute angle of the axis of latch 8, the end end inverse-arc shape of the chute section 22 Section 23.Flare openings section 20, axially rise as high as the banks section 21, chute section 22 and arcwall groove 23 can limit straight pin 9 and be tied with it Structure changes and changed, so as to drive slide block mechanism 4 to move, 20 openends of flare openings section therein are larger, facilitate straight pin 9 Into sheave groove 10, and section 21 of axially rising as high as the banks can then ensure the not transverse shifting of slide block mechanism 4, it is ensured that during insertion, latch 8 Interacted with steel ball 13, to realize that the separation of slide block mechanism 4 and unlocking mechanism 6 provides buffer time, and chute section 22 then makes The transverse shifting of slide block mechanism 4 is obtained, the plug of connector 1 is realized, straight pin 9 can be caught in it by last arcwall groove 23, protected Card is plugged in passage 3 in stable be inserted in of latch 8, so that slide block mechanism 4 is laterally locked.
In the embodiment above, the latch 8 is located at the end-beveling formation inclined plane of the inner side of plug passage 3.In latch 8 After insertion plug passage 3, inclined plane is contacted with steel ball 13 first, it is possible to reduce latch 8 to the active force and frictional force of steel ball 13, Reduce and block, it is ensured that insertion is smooth.
The present embodiment discloses the use of the insurance dog-type coupling to preferably embody the technical scheme of the present embodiment Method, comprises the following steps,
Unblock:Latch 8 is inserted into plug passage 3, straight pin 9 enters flare openings section 20, now the outer lateral top of latch 8 The Inner extrusion steel ball 13 of rod aperture 12, steel ball 13 drives unlocking mechanism 6 to move right and compress adjustable spring 18, when the both sides of ball 19 In the resigning step 15 for being respectively positioned on solution lock section 16 and the inner side of shell 2, unblock is completed, now straight pin 9 is located at section 21 of rising as high as the banks;
Power-off:Latch 8 is persistently inserted, latch 8 enters chute section 22 after being moved along section 21 of rising as high as the banks, and now straight pin 9 is oblique Groove section 22 acts on the entirety of lower band movable slider mechanism 4 and moved to right, and slide block mechanism 4 drives plug to move to right, and connector electrical connection disconnects and protected Hold and necessarily pull out electrical distance, form open circuit;
Self-locking:Latch 8 is continued into after power-off, straight pin 9 enters arcwall groove 23 by chute section 22, now steel ball 13 Latch 8, the self-locking of latch 8 are laterally held out against under the effect of adjustable spring 18.
Locking:Latch 8 is reversely extracted, straight pin 9 is rapid under the effect of sheave groove 10 to drive slide block mechanism 4 to move to left, simultaneously Adjustable spring 18 is upheld, and the transverse shifting of resigning step 15 of solution lock section 16 is relative with ball 19 to be slided, when latch 8 is extracted completely When, slide block mechanism 4 sets back, now, and resigning step 15 and the ball 19 of solution lock section 16 stagger completely, and the one end of ball 19 is located at The resigning step 15 of the inner side of shell 2, slide block mechanism 4 and unlocking mechanism 6 are realized by ball 19 in the presence of adjustable spring 18 Locked, now connector is in path, completes path blockade.
Pass through above method, you can realize fast insert-pull and the self-locking of insurance dog-type coupling.
It is embodiments of the invention as described above.Each preferred embodiment described previously for the present invention, each is preferred Preferred embodiment in embodiment is if not substantially contradictory or premised on a certain preferred embodiment, and each is preferred Embodiment can arbitrarily stack combinations use, the design parameter in the embodiment and embodiment is merely to understand table The invention verification process of inventor is stated, and is not used to the scope of patent protection of the limitation present invention, scope of patent protection of the invention Still it is defined by its claims, the equivalent structure change that every specification and accompanying drawing content with the present invention is made, together Reason should be included within the scope of the present invention.

Claims (8)

1. one kind insurance dog-type coupling, including connector (1), it is characterised in that be provided with the shell (2) of connector (1) The slide block mechanism (4) that can be slided along slideway (5) is provided with slideway (5), slideway (5), slide block mechanism (4) two ends connect solution respectively The plug of latch mechanism (6) and connector, the shell (2) is provided with the plug passage (3) for extending transversely through slideway (5), and plug is logical Latch (8) is provided with road (3), latch (8) can drive sliding equipment (4) to be slided along slideway (5).
2. a kind of insurance dog-type coupling according to claim 1, it is characterised in that the unlocking mechanism (6) includes master Body (17), the middle part and both sides of main body (17) one end are respectively guide part (14) and solution lock section (16), and main body (17) other end connects It is connected to adjustable spring (18);Slide block mechanism (4) end is provided with jogger hole (12) and locating slot (11), the guide part (14) it is respectively cooperating with jogger hole (12), solution lock section (16) and locating slot (11) by unlocking mechanism (6) and slide block mechanism (4) cooperation Steel ball (13) is additionally provided with connection, the jogger hole (12).
3. a kind of insurance dog-type coupling according to claim 2, it is characterised in that the slide block mechanism (4) is located at fixed The ball (19) being provided with cross through hole, cross through hole for self-locking, the solution lock section are additionally provided with the outside of position groove (11) (16) resigning step (15) is equipped with the inside of the corresponding shell on the outside of end and slide block mechanism (4) end.
4. a kind of insurance dog-type coupling according to claim 1, it is characterised in that the latch (8) and plug passage (3) one end coordinated is provided with avoiding misinsertion step (7).
5. a kind of insurance dog-type coupling according to claim any one of 1-4, it is characterised in that the slide block mechanism (4) it is located on the inside of plug passage (3) and is provided with straight pin (9), latch (8) end is provided with what is coordinated with straight pin (9) Sheave groove (10).
6. a kind of insurance dog-type coupling according to claim 5, it is characterised in that the sheave groove (10) is in staged Set, including flare openings section (20), the axial direction at middle part of starting are risen as high as the banks section (21), the chute section (22) at rear portion and afterbody Arcwall groove (23), the chute section (22) and latch (8) axis are at an acute angle to be set, the end end of the chute section (22) Inverse-arc shape is bent to form the arcwall groove (23).
7. a kind of insurance dog-type coupling according to claim 6, it is characterised in that it is logical that the latch (8) is located at plug End-beveling formation inclined plane on the inside of road (3).
8. a kind of application method for insuring dog-type coupling, it is characterised in that comprise the following steps,
Unblock:By latch (8) insertion plug passage (3), straight pin (9) enters flare openings section (20), and now latch (8) is outside Lateral jogger hole (12) Inner extrusion steel ball (13), steel ball (13) drives unlocking mechanism (6) to move right and compresses adjustable spring (18), when ball (19) both sides are respectively positioned on the resigning step (15) on the inside of solution lock section (16) and shell (2) Nei, unblock is completed, this When straight pin (9) be located at and rise as high as the banks section (21);
Power-off:Latch (8) is persistently inserted, latch (8) enters chute section (22) along after section (21) movement of rising as high as the banks, now straight pin (9) integrally moved to right in chute section (22) effect lower band movable slider mechanism (4), slide block mechanism (4) drives plug to move to right, connector electricity Connection disconnects and keeps necessarily pulling out electrical distance, forms open circuit;
Self-locking:Latch (8) is continued into after power-off, straight pin (9) enters arcwall groove (23) by chute section (22), now steel Ball (13) laterally holds out against latch (8), latch (8) self-locking under adjustable spring (18) effect.
Locking:Latch (8) is reversely extracted, straight pin (9) is rapid under sheave groove (10) effect to drive slide block mechanism (4) to move to left, Simultaneous retractable spring (18) is upheld, and resigning step (15) transverse shifting of solution lock section (16) is relative with ball (19) to be slided, when slotting When pin (8) is extracted completely, slide block mechanism (4) sets back, now, and the resigning step (15) and ball (19) of solution lock section (16) are complete Completely wrong to open, ball (19) one end is located at the resigning step (15) on the inside of shell (2), and slide block mechanism (4) and unlocking mechanism (6) pass through Ball (19) realized in the presence of adjustable spring (18) it is locked, now connector be in path, complete path blockade.
CN201710515918.3A 2017-06-29 2017-06-29 Safety pin type connector and use method thereof Active CN107134690B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN107134690A true CN107134690A (en) 2017-09-05
CN107134690B CN107134690B (en) 2023-07-14

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CN112736619A (en) * 2020-12-23 2021-04-30 苏州骏昌通讯科技股份有限公司 Chute cutting method for electronic connector

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